/* wf_jn.c -- float version of w_jn.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

#include "fdlibm.h"
#include <errno.h>


#ifdef __STDC__
    float jnf(int n, float x)   /* wrapper jnf */
#else
    float jnf(n,x)          /* wrapper jnf */
    float x; int n;
#endif
{
#ifdef _IEEE_LIBM
    return __ieee754_jnf(n,x);
#else
    float z;
    struct exception exc;
    z = __ieee754_jnf(n,x);
    if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
    if(fabsf(x)>(float)X_TLOSS) {
        /* jnf(|x|>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "jnf";
        exc.err = 0;
        exc.arg1 = (double)n;
        exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
                Djy_SaveLastError(ERANGE);
            else if (!matherr(&exc)) {
               Djy_SaveLastError(ERANGE);
            }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return exc.retval;
    } else
        return z;
#endif
}

#ifdef __STDC__
    float ynf(int n, float x)   /* wrapper ynf */
#else
    float ynf(n,x)          /* wrapper ynf */
    float x; int n;
#endif
{
#ifdef _IEEE_LIBM
    return __ieee754_ynf(n,x);
#else
    float z;
    struct exception exc;
    z = __ieee754_ynf(n,x);
    if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
        if(x <= (float)0.0){
        /* ynf(n,0) = -inf or ynf(x<0) = NaN */
#ifndef HUGE_VAL
#define HUGE_VAL inf
        double inf = 0.0;

        SET_HIGH_WORD(inf,0x7ff00000);  /* set inf to infinite */
#endif
        exc.type = DOMAIN;  /* should be SING for IEEE */
        exc.name = "ynf";
        exc.err = 0;
        exc.arg1 = (double)n;
        exc.arg2 = (double)x;
        if (_LIB_VERSION == _SVID_)
            exc.retval = -HUGE;
        else
            exc.retval = -HUGE_VAL;
        if (_LIB_VERSION == _POSIX_)
            Djy_SaveLastError(EDOM);
        else if (!matherr(&exc)) {
            Djy_SaveLastError(EDOM);
        }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
        }
    if(x>(float)X_TLOSS) {
        /* ynf(x>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "ynf";
        exc.err = 0;
        exc.arg1 = (double)n;
        exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
                Djy_SaveLastError(ERANGE);
            else if (!matherr(&exc)) {
                Djy_SaveLastError(ERANGE);
            }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
    } else
        return z;
#endif
}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__
    double jn(int n, double x)
#else
    double jn(n,x)
    double x; int n;
#endif
{
    return (double) jnf(n, (float) x);
}

#ifdef __STDC__
    double yn(int n, double x)
#else
    double yn(n,x)
    double x; int n;
#endif
{
    return (double) ynf(n, (float) x);
}

#endif /* defined(_DOUBLE_IS_32BITS) */
